hi sydney! welcome to the forums!
i tried out to a theater on ice team at my rink, and made it as an alternate. although i decided not to do it, i still know a bunch about it (both of my coaches also coach the TOI team). theater on ice involves acting and dancing. they do cast characters, but there aren't any lines or songs. it seems like a ton of fun, i just couldn't do it because of the time and financial commitment. but you should definitely do it if you can!